Hollow wall



Apr. l0, 1923.

F. ECKERT HOLLOW WALL Filed Sept 5, 1921 uff PatentedkApr. 10, 1923.

y* V 1,451,139g

- Enrz ECKRT, or WETZLAR, GERMANY.

HOLLOW WALL.

Application med september 3, 1921.v seal 110,498,533.

(GRANTED UNDER THE PROVISIONS F THE AT 0F MARCH 3, 1921, 4.1 STAT. L., 1313.)

To allwhlomz't may cof/acera:`

Be it known that I, FRITZ ECKERT, a citizen of the German Republic, 'residing at Wetzlar, Grermany` have invented certain new andk useful Improvements in I-Iollon1 Walls (for which I have filed applications in Germany, June 14,1919, Patent No..339, r9413; Belgium, July 14:, 1921, Patent No. 237,959; Denmark, July 12, 1921; England, July 13, 1921; France; July 12, 1921, Patent No. 538,185;`H011and,=Ju1y 19, 1921,y

l, Italy, July 19,.'1921; vNorway, July 14e, 1921; Austria, July 7, 1921; Spain, July 14; 1921, Patent No. 78,802; Sweden, July 8,

15 1921; Switzerland, July 6, 1921; Czechoslovakia, May 27, 1921; Poland, September 16, 1921), of which the following is a specication. l v

For attaining a saving in the costof building, it has been .proposed to erect hollow walls of standard bricks in which these are arranged as stretchers on edge, and transverse connecting `members or headers also on edge are also used as bondinggvbeing larranged one above another in all the courses so that vertical through passages or shafts are formed. With suchv a method v of construction the mortar falling into the shafts which extend the height of the story cannot be recovered, or can only be got out with diiculty. s Moreover, in shafts` of full storyheight an air circulation is produced which is not conductive to the desired protection from heat or cold;

4`35 In another methody of construction the courses ofstretchers laid on edge, and ofheaders, recur at regular intervals and in lieu of standard. bricks specially dimensionedH bricks are used, while upright'bonding 40 bricks are completely dispensed with. '.IPhis arrangement necessitates thev use of a considerable amount of bricks and mortar.

The hollow wall of standard bricks fornivingthe subject of the present invention is intended yto avoid the disadvantages mentioned. As compared with the first mentioned method of construction kit differs in this that the bon-ding bricks arel not located s above one another throughout the courses sothat the formation of vertical shafts is avoided and a division'of the whole ofthe hollow space into horizontal passages is brought a'bout by full courses of bonding bricks in the form of headers laid flat. As the result, the mortar dropping into the hollow spaces can easily be recovered, and this is a matter of importanceffor cheap construction and moreover,y better protection from heat and cold is obtained by reasonof Vthe small movement of air.

Compared with the second method of construction referred to there is obtainedvby the present construction of hollow wall, a

to Fig. 2.of a hollow wall one and a half bricks thick. 1

As shown the standard bricks placed on edge in the inner and outer walls a and a2 of the hollow wall are bonded at certain lateral distance apart yby bonding bricks d. At `certain vertical distances apart is laid a complete course of flat headers f which has for its object to anchor the inner and outer walls together and to subdivide the insulaty ing kair space of the whole story. Several courses of such flat bonding bricks may be provided at changes of thickness to support the beams, thus saving corbels. The quoins g, g' as.,` also the door' and window reveals, are constructed as shownin the drawings, in solid brickwork. For the sake of'clearness the bonding bricks cl and courses of Hat headers fare indicated by hatched lines.

In the .hollow-.wall a', azone brick thick only one hollow space" iszprovided but in the walls a', a2, a3, one and a half bricks thick, two hollow spaces are provided. The bonding bricks d may be disposed as shown in Fig. 3101' in any other similar manner.

I claim A hollow wall of standard bricks wherein;

lsavingk of ybricks and mortar since thevv v of stretohers separate bonding bricks in such a manner that the Vertical course is interrupted repeatedly and they vertical shaft is shut off at thesek parts and several complete 5 courses of headersl laid flat dividing the Whole of the hollow space into horizontal passages.

In testimony whereof I aflix my signature 

